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The Separation of Intrinsic and Scattering Seismic Attenuation in South Korea.

Authors :
Tae Woong Chung
Yoshimoto, Kazuo
Sukyoung Yun
Source :
Bulletin of the Seismological Society of America; Dec2010, Vol. 100 Issue 6, p3183-3193, 11p, 1 Diagram, 2 Charts, 7 Graphs
Publication Year :
2010

Abstract

For the separation of intrinsic (Q<subscript>i</subscript><superscript>-1</superscript>) and scattering attenuation (Q<subscript>s</subscript><superscript>-1</superscript> in South Korea, coda observations represented by the multiple-lapse time windows method were numerically simulated using the direct simulation Monte Carlo method. The simulation showed that the depth-dependent velocity model separated by crust and mantle fit better than the uniform velocity model. Under a uniform attenuation assumption, the Q<subscript>i</subscript><superscript>-1</superscript> and total<subscript>t</subscript><superscript>-1</superscript> in South Korea represent the lowest values among current global measurements. These low attenuation values can be explained by the inactive seismicity of South Korea corresponding to those of the seismically stable area such as a shield. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00371106
Volume :
100
Issue :
6
Database :
Supplemental Index
Journal :
Bulletin of the Seismological Society of America
Publication Type :
Academic Journal
Accession number :
58484568
Full Text :
https://doi.org/10.1785/0120100054